Dav Pilkey

David Murray "Dav" Pilkey Jr. is an American comic book writer, author, and illustrator of children's fiction. He is known as the author and illustrator of the children's book series Captain Underpants and its spin-off children's graphic novel series Dog Man, the latter published under the respective writer and illustrator pen names of George Beard and Harold Hutchins, who are also the two protagonists in the Captain Underpants franchise.